There are approximately 100 000 kilometres of transmission pipelines in Canada, 80 000 are natural gas pipelines and 23 000 crude oil pipelines. The map shows three types of pipelines: transmission trunk lines, gathering system field lines and distribution lines. Gathering pipelines move crude oil and natural gas from wells to processing facilities. After processing, feeder lines carry the hydrocarbons to the major, long distance transmission lines. Transmission lines deliver product to small-diameter distribution pipelines, as well as industrial users, local distributors, refineries or connection pipelines to the United States.